EP1878897B1 - Vorrichtung und Verfahren zur Rücklauferkennung für einen Verbrennungsmotor - Google Patents

Vorrichtung und Verfahren zur Rücklauferkennung für einen Verbrennungsmotor Download PDF

Info

Publication number
EP1878897B1
EP1878897B1 EP07111227.0A EP07111227A EP1878897B1 EP 1878897 B1 EP1878897 B1 EP 1878897B1 EP 07111227 A EP07111227 A EP 07111227A EP 1878897 B1 EP1878897 B1 EP 1878897B1
Authority
EP
European Patent Office
Prior art keywords
reverse rotation
period
end position
detected
rotation detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP07111227.0A
Other languages
English (en)
French (fr)
Other versions
EP1878897A2 (de
EP1878897A3 (de
Inventor
Shinichi Ishikawa
Kazuhito Tokugawa
Kunitoshi Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Keihin Corp
Original Assignee
Keihin Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Keihin Corp filed Critical Keihin Corp
Publication of EP1878897A2 publication Critical patent/EP1878897A2/de
Publication of EP1878897A3 publication Critical patent/EP1878897A3/de
Application granted granted Critical
Publication of EP1878897B1 publication Critical patent/EP1878897B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane
    • G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/06—Reverse rotation of engine

Definitions

  • the present invention relates to a reverse rotation detection apparatus and a reverse rotation detection method for detecting rotation in the reverse direction of a crankshaft in an internal combustion engine.
  • a crankshaft may rotate in reverse from a rotation direction which is previously given, namely from a state of rotation in the normal rotation direction under unstable combustion conditions such as engine start-up.
  • a conventional apparatus for detecting reverse rotation of a crankshaft, which is an abnormal operational state in an internal combustion engine a plurality of teeth are formed at equal intervals on the outer periphery of an engine output shaft, two rotation speed sensors are provided for generating pulse signals having mutually different phases when the teeth pass therethrough, and a deviation signal between the signals obtained from the two rotation speed sensors is output as a sine wave signal via a filter and a comparator.
  • the sine wave signal differs greatly between a normal rotation state and a reverse rotation state, and reverse rotation is determined from the difference (see Japanese Unexamined Patent Application Publication H11-117780 ).
  • US 6058909 discloses a cylinder identifying apparatus with detection of reverse rotation.
  • a reverse rotation detection apparatus of the present invention comprises: a rotor having a plurality of portions to be detected which are arranged at equal angular intervals on an outer periphery thereof, for rotating in association with a crankshaft of an internal combustion engine; a pickup disposed near the outer periphery of the rotor, for detecting a front end position and a rear end position of each of the plurality of portions individually to generate a pulse signal; period detecting means for sequentially detecting a first period, which is an interval from a detected time of the front end position to a detected time of the rear end position, and a second period, which is an interval from the detection time of the rear end position to the detection time of the front end position, in accordance with the pulse signal output by the pickup; and reverse rotation determining means for comparing a first ratio between a current value and a previous value of the first period with a first threshold value, comparing a second ratio between a current value and a previous value of the second period with a second threshold value, and generating
  • a reverse rotation detection method of the present invention is a method for detecting reverse rotation of a crankshaft in an internal combustion engine including a rotor having a plurality of portions to be detected which are arranged at equal angular intervals on an outer periphery thereof, for rotating in association with a crankshaft of an internal combustion engine, and a pickup disposed near the outer periphery of the rotor, for detecting a front end position and a rear end position of each of the plurality of portions individually to generate a pulse signal, the method comprising the steps of: sequentially detecting a first period, which is an interval from a detected time of the front end position to a detected time of the rear end position, and a second period, which is an interval from the detection time of the rear end position to the detection time of the front end position, in accordance with the pulse signal output by the pickup; and comparing a first ratio between a current value and a previous value of the first period with a first threshold value, comparing a second ratio between a current value and
  • the reverse rotation detection apparatus and reverse rotation detection method of the present invention when reverse rotation occurs in the crankshaft, the first period or second period measured at the time point is extremely long, and therefore, by comparing the first ratio between the current value and previous value of the first period with the first threshold value and comparing the second ratio between the current value and previous value of the second period with the second threshold value, reverse rotation of the crankshaft can be detected quickly and precisely.
  • the edge interval period measured at the time point is extremely long, and therefore, by comparing the ratio between the current value and previous value of the front end position edge interval period or rear end position edge interval period with the third threshold value, reverse rotation of the crankshaft can be detected quickly and precisely.
  • Fig. 1 shows an engine control apparatus to which a reverse rotation detection apparatus according to the present invention is applied.
  • the engine control apparatus comprises a crank angle detection mechanism 1, an ECU (Electric Control Unit) 2, a sensor group 3, and an injector 4, and an ignition apparatus 5.
  • ECU Electronic Control Unit
  • the crank angle detection mechanism 1 has a disk-shaped rotor 11 provided on a crankshaft 10 of a four-cycle internal combustion engine.
  • the rotor 11 rotates in association with rotation of the crankshaft 10.
  • Twenty-four convex portions 12 made of a magnetic material are provided continuously at fifteen degree intervals on the outer peripheral surface of the rotor 11 as portions to be detected.
  • a magnetic pickup 13 is disposed near the outer periphery of the rotor 11.
  • the fifteen degree intervals of the twenty-four convex portions 12 formed on the outer peripheral surface of the rotor 11 relate to rear end positions of the convex portions 12 in a normal rotation direction of the rotor 11 (the direction of an arrow RD).
  • One convex portion 12a of the twenty-four convex portions 12 indicates a reference angle of the crank angle.
  • the reference angle corresponds to the rear end position of the convex portion 12a in the rotation direction of the rotor 11, or more specifically a position of -7 degrees from TDC, indicating the compression top dead center of a piston, within the 360 degrees of the rotor 11.
  • the convex portion 12a is formed to be longer than the other convex portions in the rotation direction of the rotor 11.
  • the length of the convex portion 12a from the rear end position to a front end position is greater than that of the other convex portions, and therefore a time point at which the front end position of the convex portion 12a is detected by the magnetic pickup 13 is earlier than a time point at which the front end position of each of the other convex portions 12 is detected.
  • the length of the long convex portion 12a from the front end position to the rear end position is at least twice the interval between the front end position of the convex portion 12a and the rear end position of the adjacent convex portion 12, for example.
  • the length of the convex portion 12a from the front end position to the rear end position is at least twice the length of each of the other convex portions 12 from the front end position to the rear end position, for example.
  • the rear end of the convex portion 12 detected immediately after the convex portion 12a is positioned within a range of 0 to 10 degrees from TDC. Further, a crank angle signal generated by the magnetic pickup 13 concerning the long convex portion 12a serves as a reference pulse signal.
  • the ECU 2 is connected to an output of the magnetic pickup 13.
  • the ECU 2 comprises a filter circuit 21, a comparison circuit 22, an edge detection circuit 23, a CPU 24, a RAM 25, a ROM 26, output interface circuits 27, 28, and an A/D converter 29.
  • the filter circuit 21 has a resistor 21a and capacitors 21b, 21c, and removes a noise component of a high frequency from the pulse signal output by the magnetic pickup 13 to output the aforementioned negative/positive pulse pair.
  • the comparison circuit 22 has a comparator 22a and a reference voltage source 22b, and operates as a comparison circuit having a hysteresis function. Further, the comparison circuit 22 switches from an high level output to an low level output when the output signal of the filter circuit 21 increases to a predetermined voltage Vth, and switches from low level output to the high level output when the output signal of the filter circuit 21 decreases to a predetermined voltage -Vth.
  • a period of the high level output corresponds to a period of each of the convex portions 12 of the rotor 11, including the convex portion 12a, and a period of the low level output corresponds to a period between two convex portions 12 which are adjacent to each other.
  • the output signal of the comparison circuit 22 is supplied to the CPU 24 as a crank angle signal.
  • the edge detection circuit 23 detects a rising edge and a falling edge of the signal output by the comparison circuit 22.
  • the CPU 24 counts the low level period and the high level period individually in accordance with the edge detection performed by the edge detection circuit 23, and determines the long convex portion 12a indicating the reference angle of the crank angle in distinction from the other convex portions 12 on the basis of the counting result.
  • the CPU 24 also performs ignition timing and fuel injection control in accordance with the determination result.
  • the CPU 24 detects reverse rotation of the crankshaft 10 by repeatedly executing reverse rotation detection processing as described below.
  • the CPU 24, RAM 25, ROM 26, output interface circuits 27, 28, and A/D converter 29 are all connected to a common bus.
  • the output interface circuit 27 drives the injector 4 in accordance with an injector drive command from the CPU 24.
  • the injector 4 is provided near an intake port of an intake pipe of the internal combustion engine, and injects fuel when driven.
  • the output interface circuit 28 activates the ignition apparatus 5 in accordance with an electrification start command and an ignition start command from the CPU 24. More specifically, the output interface circuit 28 starts to electrify an ignition coil (not shown) of the ignition apparatus 5 in accordance with the electrification start command, and causes a spark plug (not shown) to perform spark discharge by halting the electrification in accordance with the ignition start command.
  • the ignition apparatus 5 is a full transistor type ignition apparatus, for example, which electrifies the ignition coil, generates a high voltage from an accumulated charge in the ignition coil, and applies the high voltage to the spark plug.
  • the A/D converter 29 is provided for converting analog signals from the sensor group 3 for detecting engine operating parameters required in engine control, such as an intake pipe internal pressure P B , a cooling water temperature TW, a throttle opening ⁇ th , and an exhaust gas oxygen concentration O 2 , into digital signals.
  • an output signal of the magnetic pickup 13 passes through the filter circuit 21 to form a substantially inverted triangle-shaped negative pulse relating to the front end of the convex portion 12 (including 12a) of the rotor 11 and a substantially triangular positive pulse relating to the rear end, as shown in Fig. 2 .
  • the output signal of the filter circuit 21 decreases, it is compared with the predetermined voltage -Vth in the comparison circuit 22, and when the output signal increases, it is compared with the predetermined voltage Vth.
  • crank angle signal supplied to the edge detection circuit 23 from the comparison circuit 22 is at a high level in relation to each of the convex portions 12 of the rotor 11 and at a low level in relation to each of the concave portions between the convex portions 12.
  • the edge detection circuit 23 detects the rising edge and falling edge of the crank angle signal, and supplies the CPU 24 with signals indicating the respective detection times.
  • the CPU 24 measures the period between the rising edge and falling edge detected by the edge detection circuit 23.
  • the rising edge corresponds to the front end of the convex portion 12, and the falling edge corresponds to the rear end of the convex portion 12.
  • the period from the rising edge to the falling edge corresponding to the convex portion 12 of the rotor 11 is detected as a convex portion period TCPRJ (first period).
  • the period from the falling edge to the rising edge corresponding to the concave portion between the convex portions 12 of the rotor 11 is detected as a concave portion period TCDENT (second period).
  • TCPRJ first period
  • TCDENT second period
  • TCPRJ denotes a current value of the convex portion period
  • TCPRJ1 denotes a previous value of the convex portion period
  • TCDENT denotes a current value of the concave portion period
  • TCDENT1 denotes a previous value of the concave portion period, using a time point T as a reference.
  • the CPU 24 first determines whether or not a rising edge of the output signal from the comparison circuit 22 has been detected in accordance with the output signal of the edge detection circuit 23 (step S1). When the rising edge has been detected, the CPU 24 stops measuring the concave portion period (step S2), stores the concave portion period TCDENT held at the current time point as the previous value TCDENT1 (step S3), stores the concave portion period newly obtained through the measurement as the current concave portion period TCDENT (step S4), and starts to measure a convex portion period (step S5).
  • step S6 a determination is made as to whether or not a falling edge of the output signal from the comparison circuit 22 has been detected.
  • the CPU 24 stops measuring the convex portion period (step S7), stores the convex portion period TCPRJ held at the current time point as the previous value TCPRJ1 (step S8), stores the convex portion period newly obtained through the measurement as the current convex portion period TCPRJ (step S9), and starts to measure a concave portion period (step S10).
  • This step is used to determine whether or not the crankshaft 10 has rotated in reverse during the measurement period of the current value TCDENT of the concave portion period.
  • TCDENT/TCDENT1 ⁇ A this indicates that the crankshaft 10 has rotated in reverse, and therefore a crank reverse rotation flag F_REVCRK is set to "1" (step S12).
  • a determination is made as to whether or not a ratio (first ratio) TCPRJ/TCPRJ1 between the current value TCPRJ and the previous value TCPRJ1 of the convex portion period, obtained in the steps S9 and S8, is equal to or greater than a threshold value B (first threshold value) (step S13).
  • This step is used to determine whether or not the crankshaft 10 has rotated in reverse during the measurement period of the current value TCPRJ of the convex portion period.
  • Fig. 4 shows an example of a waveform of the crank angle signal (the output signal of the comparison circuit 22) corresponding to reverse rotation positions P1 to P4 at which the rotor 11 starts to rotate in reverse.
  • the rear end positions of the convex portions 12 and long convex portion 12a are disposed at fifteen degree intervals, the convex portions 12 each have a width of five degrees, and the convex portion 12a has a width of ten degrees.
  • the TDC position corresponds to the front end position of a convex portion 12 that is positioned adjacent to the rear end position side of the long convex portion 12a.
  • the ratio TCDENT/TCDENT1 is calculated and compared with the threshold value A, but the ratio may be calculated as TCDENT1/TCDENT, whereupon a determination is made as to whether or not TCDENT1/TCDENT ⁇ A.
  • the ratio TCPRJ/TCPRJ1 is calculated and compared with the threshold value B, but the ratio may be calculated as TCPRJ1/TCDPRJ, whereupon a determination is made as to whether or not TCPRJ1/TCPRJ ⁇ B.
  • F_REVCRK 1 is set in the step S12.
  • the values of the threshold values A, B relating to TCDENT1/TCDENT and TCPRJ1/TCPRJ respectively are set at different values to the threshold values A, B relating to TCDENT/TCDENT1 and TCPRJ/TCPRJ1 respectively.
  • Fig. 5 shows another example of the reverse rotation detection processing.
  • the period between falling edges of the output signals from the comparison circuit 22 is measured as an edge interval period, whereupon a determination is made as to whether or not a ratio between a current value and a previous value of the edge interval period is equal to or greater than a threshold value C.
  • the CPU 24 determines whether or not the falling edge of the output signal from the comparison circuit 22 has been detected in accordance with the output signal from the edge detection circuit 23 (step S21).
  • the CPU 24 stops measuring the edge interval period (step S22), stores an edge interval period TC held at that point in time as a previous value TC1 (step S23), stores the edge interval period obtained anew through the measurement as the current edge interval period TC (step S24), and starts to measure the next edge interval period (step S25).
  • This step is used to determine whether or not the crankshaft 10 has rotated in reverse during the measurement period of the current value TC of the edge interval period.
  • TC/TC1 ⁇ C this indicates that the crankshaft 10 has rotated in reverse, and therefore the crank reverse rotation flag F_REVCRK is set to "1" (step S27).
  • Fig. 6 shows an example of the crank angle signal waveform corresponding to reverse rotation positions Q1 to Q3 at which the rotor 11 starts to rotate in reverse.
  • the rear end positions of the convex portions 12 and long convex portion 12a are disposed at fifteen degree intervals, the convex portions 12 have a width of five degrees, and the convex portion 12a has a width of ten degrees.
  • the TDC position corresponds to the front end position of the convex portion 12 that is positioned adjacent to the rear end position side of the long convex portion 12a.
  • the ratio TC/TC1 is calculated and compared with the threshold value C, but the ratio may be calculated as TC1/TC, whereupon a determination is made as to whether or not TC1/TC ⁇ C.
  • F_REVCRK 1 is set in the step S27.
  • the value of the threshold value C relating to TC1/TC is set at a different value to the threshold value C relating to TC/TC1.
  • the convex portions 12 are formed on the rotor 11 as portions to be detected, but concave portions may be formed in the outer peripheral surface of the rotor 11 as the portions to be detected. Furthermore, instead of forming convex portions and concave portions on the outer peripheral surface of the rotor 11, the portions to be detected may be buried in the rotor 11 or formed as marks on the outer peripheral surface.
  • the present invention is applied to a single-cylinder, four-cycle internal combustion engine, but the present invention may be applied to a multicylinder, four-cycle internal combustion engine or a two-cycle internal combustion engine.
  • the portions to be detected are detected by the magnetic pickup 13, but the present invention is not limited thereto.
  • the portions to be detected may be Hall elements or optical elements.
  • the pickup 13 need only detect at least one of the front end position and rear end position of the portions to be detected.
  • the difference between the detection time of the rear end position and the detection time of the next rear end position is detected as the edge interval period, but when the front ends of the convex portions 12 are formed at equal intervals, the difference between the detection time of the front end position and the detection time of the next front end position may be detected as the edge interval period to obtain TC/TC1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Claims (6)

  1. Vorrichtung zur Rücklauferkennung, aufweisend:
    einen Rotor (11) mit einer Vielzahl von zu erkennenden Abschnitten (12), die in gleichmäßigen Winkelabständen an einem Außenumfang von diesem angeordnet sind, um sich zusammen mit einer Kurbelwelle (10) eines Verbrennungsmotors zu drehen;
    einen Fühler (13), der nahe am Außenumfang des Rotors angeordnet ist, um eine vordere Endposition und eine hintere Endposition jedes der Vielzahl von Abschnitten einzeln zu erkennen, um ein Impulssignal zu erzeugen;
    Zeitraumerkennungsmittel zum sequentiellen Erkennen eines ersten Zeitraums,
    der ein Intervall von einer erkannten Zeit der vorderen Endposition bis zu einer erkannten Zeit der hinteren Endposition ist, und eines zweiten Zeitraums, der ein Intervall von der Erkennungszeit der hinteren Endposition bis zur Erkennungszeit der vorderen Endposition ist, und zwar gemäß dem von dem Fühler ausgegebenen Impulssignal; und
    Mittel zur Rücklaufbestimmung zum Vergleichen eines ersten Verhältnisses zwischen einem aktuellen Wert und einem vorigen Wert des ersten Zeitraums mit einem ersten Schwellenwert, Vergleichen eines zweiten Verhältnisses zwischen einem aktuellen Wert und einem vorigen Wert des zweiten Zeitraums mit einem zweiten Schwellenwert, und Erzeugen eines Rücklauferkennungssignals entsprechend den Vergleichsergebnissen hiervon.
  2. Vorrichtung zur Rücklauferkennung nach Anspruch 1, wobei die Mittel zur Rücklaufbestimmung das Rücklauferkennungssignal erzeugen, wenn das erste Verhältnis = der aktuelle Wert des ersten Zeitraums/der vorige Wert des ersten Zeitraums gleich oder größer ist als der erste Schwellenwert, und das Rücklauferkennungssignal erzeugen, wenn das erste Verhältnis kleiner ist als der erste Schwellenwert und das zweite Verhältnis = der aktuelle Wert des zweiten Zeitraums/der vorige Wert des zweiten Zeitraums gleich oder größer als der zweite Schwellenwert ist.
  3. Vorrichtung zur Rücklauferkennung nach Anspruch 1, wobei jeder der Vielzahl der zu erkennenden Abschnitte durch einen konvexen Abschnitt gebildet ist und sich ein Abschnitt der Vielzahl von zu erkennenden Abschnitten in der Länge von den anderen Abschnitten in einer Drehrichtung des Rotors unterscheidet, um einen Bezugswinkel eines Kurbelwinkels zu erkennen.
  4. Vorrichtung zur Rücklauferkennung nach Anspruch 3, wobei die hinteren Endpositionen der Vielzahl von zu erkennenden Abschnitten jeweils in gleichmäßigen Winkelabständen in einer Drehrichtung des Rotors angeordnet sind und eine Länge von der hinteren Endposition zu der vorderen Endposition des einen Abschnitts zum Erkennen des Bezugswinkels größer ist als eine Länge von der hinteren Endposition zu der vorderen Endposition von jedem der anderen erkannten Abschnitte.
  5. Vorrichtung zur Rücklauferkennung nach Anspruch 1, wobei der Fühler ein magnetischer Fühler zur magnetischen Erkennung jedes der Vielzahl von zu erkennenden Abschnitten ist, die nahe am Außenumfang des Rotors angeordnet und jeweils aus einem magnetischen Material gefertigt sind.
  6. Verfahren zur Rücklauferkennung zum Erkennen eines Rücklaufs einer Kurbelwelle (10) in einem Verbrennungsmotor, umfassend einen Rotor (11) mit einer Vielzahl von zu erkennenden Abschnitten (12), die in gleichmäßigen Winkelabständen an einem Außenumfang von diesem angeordnet sind, zum Drehen zusammen mit einer Kurbelwelle eines Verbrennungsmotors, und einen in der Nähe des Außenumfangs des Rotors angeordneten Fühler (13) zum Erkennen einer vorderen Endposition und einer hinteren Endposition jedes der Vielzahl von Abschnitten einzeln, um ein Impulssignal zu erzeugen, wobei das Verfahren die folgenden Schritte aufweist:
    sequentielles Erkennen eines ersten Zeitraums, der ein Intervall von einer erkannten Zeit der vorderen Endposition bis zu einer erkannten Zeit der hinteren Endposition ist, und eines zweiten Zeitraums, der ein Intervall von der Erkennungszeit der hinteren Endposition bis zur Erkennungszeit der vorderen Endposition ist, und zwar gemäß dem von dem Fühler ausgegebenen Impulssignal; und
    Vergleichen eines ersten Verhältnisses zwischen einem aktuellen Wert und einem vorigen Wert des ersten Zeitraums mit einem ersten Schwellenwert, Vergleichen eines zweiten Verhältnisses zwischen einem aktuellen Wert und einem vorigen Wert des zweiten Zeitraums mit einem zweiten Schwellenwert, und Erzeugen eines Rücklauferkennungssignals entsprechend den Vergleichsergebnissen hiervon.
EP07111227.0A 2006-07-10 2007-06-28 Vorrichtung und Verfahren zur Rücklauferkennung für einen Verbrennungsmotor Expired - Fee Related EP1878897B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006189016A JP4754424B2 (ja) 2006-07-10 2006-07-10 内燃エンジンの逆転検出装置及び逆転検出方法

Publications (3)

Publication Number Publication Date
EP1878897A2 EP1878897A2 (de) 2008-01-16
EP1878897A3 EP1878897A3 (de) 2012-10-10
EP1878897B1 true EP1878897B1 (de) 2014-08-20

Family

ID=38571908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07111227.0A Expired - Fee Related EP1878897B1 (de) 2006-07-10 2007-06-28 Vorrichtung und Verfahren zur Rücklauferkennung für einen Verbrennungsmotor

Country Status (2)

Country Link
EP (1) EP1878897B1 (de)
JP (1) JP4754424B2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8327825B2 (en) 2009-02-20 2012-12-11 Keihin Corporation Control apparatus for internal combustion engine
JP5148530B2 (ja) * 2009-02-20 2013-02-20 株式会社ケーヒン 内燃機関の点火制御装置
FR2942851B1 (fr) * 2009-03-04 2011-03-18 Peugeot Citroen Automobiles Sa Procede d'estimation de la position d'arret d'un moteur a combustion
JP5381747B2 (ja) * 2010-01-26 2014-01-08 株式会社デンソー 燃料噴射装置
JP6393564B2 (ja) * 2014-09-11 2018-09-19 株式会社ケーヒン 燃料噴射制御装置
CA2978280C (en) 2015-03-18 2019-08-27 Exxonmobil Upstream Research Company Single sensor systems and methods for detection of reverse rotation
FR3035157B1 (fr) * 2015-04-16 2017-04-21 Continental Automotive France Procede et dispositif de detection de rotation inverse d'un moteur a combustion interne
KR101795187B1 (ko) 2015-12-16 2017-11-07 현대자동차주식회사 크랭크 샤프트의 치주기 비를 이용한 차량의 엔진 역회전 감지 방법
FR3086695B1 (fr) 2018-09-27 2021-04-16 Continental Automotive France Procede de synchronisation robuste a la rotation inverse

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3375679B2 (ja) * 1993-05-24 2003-02-10 本田技研工業株式会社 内燃機関の逆転防止装置
JP3788687B2 (ja) * 1998-06-15 2006-06-21 三菱電機株式会社 内燃機関の気筒識別装置
JP3975819B2 (ja) * 2002-05-08 2007-09-12 株式会社デンソー 内燃機関の点火制御装置
JP4236424B2 (ja) * 2002-07-22 2009-03-11 株式会社日立製作所 内燃機関の制御装置
JP2005042589A (ja) * 2003-07-25 2005-02-17 Toyota Motor Corp 内燃機関のクランク角検出装置
KR100527446B1 (ko) * 2003-10-22 2005-11-09 현대자동차주식회사 엔진 역전 감지를 통한 가솔린 엔진의 역화 방지제어 방법
JP4014580B2 (ja) * 2004-04-02 2007-11-28 株式会社ケーヒン 内燃エンジンの点火時期制御装置
JP2006046236A (ja) * 2004-08-06 2006-02-16 Kokusan Denki Co Ltd 内燃機関の回転方向判定方法及び装置

Also Published As

Publication number Publication date
EP1878897A2 (de) 2008-01-16
JP2008014287A (ja) 2008-01-24
JP4754424B2 (ja) 2011-08-24
EP1878897A3 (de) 2012-10-10

Similar Documents

Publication Publication Date Title
EP1878897B1 (de) Vorrichtung und Verfahren zur Rücklauferkennung für einen Verbrennungsmotor
US20080087249A1 (en) Crank Angle Detector Of Internal Combustion Engine And Ignition Timing Controller
JP2005291182A (ja) 失火検出装置
EP2453125A1 (de) Startsteuerungssystem für verbrennungsmotor
US7886584B2 (en) Method and apparatus for detecting a stroke of a 4-cycle internal combustion engine, based on changes in rotary engine speed
US7360407B2 (en) Crank angle detecting apparatus and reference angular position detection method for internal combustion engine
US6612296B1 (en) Control apparatus for internal combustion engine
JP2807737B2 (ja) 内燃エンジンの燃焼状態検出装置
JP3126689B2 (ja) エンジン制御装置
JP2007040208A (ja) 内燃機関の制御装置
CN100516489C (zh) 引擎的冲程判别装置
EP0967379B1 (de) Vorrichtung zur Berechnung der Drehzahl einer Brennkraftmaschine
US6837100B1 (en) Detection of combustion misfiring
US6058766A (en) Crank angle detector
JP2008309038A (ja) 単気筒エンジンの行程判別方法および行程判別装置
KR0151519B1 (ko) 엔진의 회전 검출장치
JP2009235963A (ja) エンジンのクランク角検出方法および装置
JP2005042589A (ja) 内燃機関のクランク角検出装置
GB2337136A (en) Regulating an engine using a transmitter wheel with a reference mark
JPH02233837A (ja) 内燃機関用逆転防止装置
JP2007047128A (ja) 回転体の回転角度検出装置
RU2170915C1 (ru) Способ определения фазы рабочего цикла двс
JP2005240606A (ja) 内燃機関のクランク角判別装置
RU2242734C2 (ru) Способ определения фазы рабочего цикла двс
JP2005023808A (ja) クランクシャフトの回転状態検出装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20080303

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F02D 41/06 20060101AFI20120831BHEP

AKX Designation fees paid

Designated state(s): DE FR GB

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20140320

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RIN1 Information on inventor provided before grant (corrected)

Inventor name: TOKUGAWA, KAZUHITO

Inventor name: WATANABE, KUNITOSHI

Inventor name: ISHIKAWA, SHINICHI

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602007038185

Country of ref document: DE

Effective date: 20140925

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602007038185

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602007038185

Country of ref document: DE

Representative=s name: STAUDT IP LAW, DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20150521

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20200617

Year of fee payment: 14

Ref country code: FR

Payment date: 20200512

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20200618

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602007038185

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210628

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630